Please take these designations with a grain of salt. Putting an author on the "mystery" list is not a comment on their literary abilities, merely a reflection that they generally write books in which at least one murder occurs.
Of course, there are exceptions. Dick Francis wrote many mysteries in which the only dead bodies were equine, and the last one I read had no death in it at all. On the other hand, Ian McEwan, William Boyd, and others on the "general" list often sprinkle a few corpses throughout their books. And Kate Atkinson confused me so that I included her on both lists.
Also, "mystery" may not be exactly correct. Some of these authors may actually write "thrillers" or "crime novels." But I am lumping them all under one heading for simplicity's sake.